IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O
Began               : Wed Jul  8 18:05:32 2020
Command line        : ./ior -C -Q 1 -g -G 27 -k -e -o /tmp/cbt/mnt/cbt-cephfs-kernel/0/io500/io500-app/datafiles/2020.07.08-16.53.40-app/ior-hard/file -O stoneWallingStatusFile=/tmp/cbt/mnt/cbt-cephfs-kernel/0/io500/io500-app/datafiles/2020.07.08-16.53.40-app/ior-hard/stonewall -O stoneWallingWearOut=1 -t 47008 -b 47008 -s 1000000 -w -D 300 -a CEPHFS --cephfs.user=admin --cephfs.conf=/etc/ceph/ceph.conf --cephfs.prefix=/tmp/cbt/mnt/cbt-cephfs-kernel/0
Machine             : Linux o03
TestID              : 0
StartTime           : Wed Jul  8 18:05:32 2020
Path                : /tmp/cbt/mnt/cbt-cephfs-kernel/0/io500/io500-app/datafiles/2020.07.08-16.53.40-app/ior-hard
FS                  : 428.5 TiB   Used FS: 13.2%   Inodes: 69.9 Mi   Used Inodes: 100.0%

Options: 
api                 : CEPHFS
apiVersion          : 
test filename       : /tmp/cbt/mnt/cbt-cephfs-kernel/0/io500/io500-app/datafiles/2020.07.08-16.53.40-app/ior-hard/file
access              : single-shared-file
type                : independent
segments            : 1000000
ordering in a file  : sequential
ordering inter file : constant task offset
task offset         : 1
nodes               : 8
tasks               : 256
clients per node    : 32
repetitions         : 1
xfersize            : 47008 bytes
blocksize           : 47008 bytes
aggregate filesize  : 10.94 TiB
stonewallingTime    : 300
stoneWallingWearOut : 1

Results: 

access    bw(MiB/s)  IOPS       Latency(s)  block(KiB) xfer(KiB)  open(s)    wr/rd(s)   close(s)   total(s)   iter
------    ---------  ----       ----------  ---------- ---------  --------   --------   --------   --------   ----
stonewalling pairs accessed min: 303763 max: 304385 -- min data: 13.3 GiB mean data: 13.3 GiB time: 300.2s
WARNING: Expected aggregate file size       = 12034048000000.
WARNING: Stat() of aggregate file size      = 3662983700480.
WARNING: Using actual aggregate bytes moved = 3662983700480.
WARNING: maybe caused by deadlineForStonewalling
write     11595      258953     300.64      45.91      45.91      0.352667   300.91     0.000299   301.27     0   
Max Write: 11595.36 MiB/sec (12158.61 MB/sec)

Summary of all tests:
Operation   Max(MiB)   Min(MiB)  Mean(MiB)     StdDev   Max(OPs)   Min(OPs)  Mean(OPs)     StdDev    Mean(s) Stonewall(s) Stonewall(MiB) Test# #Tasks tPN reps fPP reord reordoff reordrand seed segcnt   blksiz    xsize aggs(MiB)   API RefNum
write       11595.36   11595.36   11595.36       0.00  258649.86  258649.86  258649.86       0.00  301.26659     300.21      11616.82     0    256  32    1   0     1        1         0    0 1000000    47008    47008 3493293.5 CEPHFS      0
Finished            : Wed Jul  8 18:10:34 2020